231303022201 has 2 divisors, whose sum is σ = 231303022202. Its totient is φ = 231303022200.

The previous prime is 231303022199. The next prime is 231303022217. The reversal of 231303022201 is 102220303132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125440638976 + 105862383225 = 354176^2 + 325365^2 .

It is a cyclic number.

It is not a de Polignac number, because 231303022201 - 2¹ = 231303022199 is a prime.

Together with 231303022199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231303022241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651511100 + 115651511101.

It is an arithmetic number, because the mean of its divisors is an integer number (115651511101).

Almost surely, 2^231303022201 is an apocalyptic number.

It is an amenable number.

231303022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303022201 is an equidigital number, since it uses as much as digits as its factorization.

231303022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231303022201 its reverse (102220303132), we get a palindrome (333523325333).

The spelling of 231303022201 in words is "two hundred thirty-one billion, three hundred three million, twenty-two thousand, two hundred one".